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7cd785adc4
Afterwards it is possible to convert attaching in card drivers. Signed-off-by: Matthias Schwarzott <zzam@gentoo.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/*
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Driver for Silicon Labs SI2165 DVB-C/-T Demodulator
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Copyright (C) 2013-2014 Matthias Schwarzott <zzam@gentoo.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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References:
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http://www.silabs.com/Support%20Documents/TechnicalDocs/Si2165-short.pdf
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*/
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#ifndef _DVB_SI2165_H
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#define _DVB_SI2165_H
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#include <linux/dvb/frontend.h>
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enum {
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SI2165_MODE_OFF = 0x00,
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SI2165_MODE_PLL_EXT = 0x20,
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SI2165_MODE_PLL_XTAL = 0x21
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};
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/* I2C addresses
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* possible values: 0x64,0x65,0x66,0x67
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*/
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struct si2165_platform_data {
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/*
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* frontend
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* returned by driver
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*/
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struct dvb_frontend **fe;
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/* external clock or XTAL */
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u8 chip_mode;
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/* frequency of external clock or xtal in Hz
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* possible values: 4000000, 16000000, 20000000, 240000000, 27000000
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*/
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u32 ref_freq_Hz;
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/* invert the spectrum */
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bool inversion;
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};
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struct si2165_config {
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/* i2c addr
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* possible values: 0x64,0x65,0x66,0x67 */
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u8 i2c_addr;
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/* external clock or XTAL */
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u8 chip_mode;
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/* frequency of external clock or xtal in Hz
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* possible values: 4000000, 16000000, 20000000, 240000000, 27000000
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*/
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u32 ref_freq_Hz;
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/* invert the spectrum */
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bool inversion;
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};
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#if IS_REACHABLE(CONFIG_DVB_SI2165)
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struct dvb_frontend *si2165_attach(
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const struct si2165_config *config,
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struct i2c_adapter *i2c);
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#else
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static inline struct dvb_frontend *si2165_attach(
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const struct si2165_config *config,
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struct i2c_adapter *i2c)
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{
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pr_warn("%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif /* CONFIG_DVB_SI2165 */
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#endif /* _DVB_SI2165_H */
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